Genuine OEM Volkswagen Third Brake Stop Light, part number 3C5945087. This auxiliary brake light is typically mounted higher than the main taillights, providing additional visibility to drivers behind the vehicle when the brakes are applied. It weighs 0.258 kg and measures 0.33m in length. Choosing a genuine OEM brake light ensures correct brightness, beam pattern, and electrical compatibility, which are critical for road safety and compliance with lighting regulations.